Rb Standard Solution CAS 7440-17-7

Purity 1000μg/mL in 5% HNO3In StockPharmaceutical Standards
CAS No.7440-17-7
Molecular FormulaRb
Molecular Weight85.47 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Rb Standard Solution CAS 7440-17-7 chemical structure

Description

Rb Standard Solution (CAS 7440-17-7), molecular formula Rb and molecular weight 85.47 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Rb Standard Solution (Rb) is characterized by an inorganic composition. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaRb
Molecular Weight85.47 g/mol
Purity1000μg/mL in 5% HNO3
StorageStore at 2-8°C
Solubility (reference)Freely soluble in water
StabilityStable under recommended storage conditions
CAS Registry Year (est.)1959

Recommended Standards

Why CATO?